You might want to consider going up a few teeth on your clutch bell. It would be much cheaper, and with that motor you probably won't notice much power loss off the line. I have that motor in two of my vehicles and have resorted to gearing it up for more speed. Went from a 13T clutchbell to an 18T clutchbell on my thunder tiger buggy and it still rips off the line. Top speed with the 18T bell is just insane....definitely hitting highway speeds. I would say it's the fastest vehicle I have by far.